Features
• Multifunction data acquisition modules attach to PCs via Universal Serial Bus (USB 1.0 & 2.0 compatible)
• Ultra low-power design requires no external power or batteries
• Can be located up to 5 meters (16.4 feet) from the PC
• High-resolution, 22-bit A/D converter offers reading rates from 1 to 80 Hz
• Built-in cold-junction compensation for direct thermocouple measurements
• Frequency/pulse, or duty-cycle measurements up to 1 MHz*
 • Convenient removable screw-terminal signal connections
• 500V optical isolation from PC for safe and noise-free measurements
• Programmable inputs from ±31 mV to ±20V full scale
• Digital I/O lines with open collector output for direct drive applications*
• Expandable up to 80 channels of analog and digital I/O*
• Up to 100 Personal Daq modules can be attached to one PC using USB hubs, for a total capacity of 8,000 channels
• Digital calibration — no potentiometers or adjustments required